activity
20242026
collaborators

10 papers

astro-ph.HE2026

Hyperonic compact stars with vector portal dark matter

Prafulla K. Panda, Deepak Kumar, Hiranmaya Mishra +1

The appearance of hyperons in the core of neutron stars generally softens the equation of state (EOS), posing a longstanding challenge to the existence of observed two-solar-mass c…

hep-ph2026

Neutron star with dark matter using vector portal

Deepak Kumar, Ranjita K. Mohapatra, Hiranmaya Mishra +1

Compact astrophysical objects, such as neutron star, can provide a unique environment where the interplay between strongly interacting nuclear matter and dark matter (DM) can yield…

hep-ph2026

Diffusion of multiple conserved charges from entropy production

Samapan Bhadury, Arpan Das, Sandeep Chatterjee +1

We derive dissipative relativistic hydrodynamic equations in the presence of multiple conserved charges, i.e., baryon number (), electric charge (), and strangeness (), us…

nucl-th2026

Spin dynamics and polarization in relativistic systems: recent developments

Sourav Dey, Arpan Das, Hiranmaya Mishra +1

We review recent theoretical and experimental developments in spin dynamics and polarization phenomena in relativistic systems, with a particular focus on heavy-ion collisions. The…

nucl-th2026

Dissipative spin hydrodynamics in Bjorken flow and thermal dilepton production

Sejal Singh, Sourav Dey, Arpan Das +2

We investigate the boost-invariant expansion of a recently developed first-order spin hydrodynamic framework in which the spin chemical potential is treated as a leading-order hydr…

nucl-th2025

Mean free path of photons in relativistic heavy ion collisions

Jajati K. Nayak, Rupa Chatterjee

Electromagnetic probes, such as photons and dileptons, play a key role in diagnosing the initial temperature of the hot and dense quark-gluon plasma (QGP) matter created in relativ…